Page 174 of 372

You will have to store your favorite
stations in the Preset buttons after
the system begins working. Your
original settings were lost when
power was disconnected.
If your vehicle’s battery is discon-
nected or goes dead, the audio
system will disable itself . If this
happens, you will see ‘‘Code’’ in the
frequencydisplaythenexttimeyou
turn on the system. Use the Preset
buttons to enter the five-digit code. If
it is entered correctly, the radio will
start playing.
If you make a mistake entering the
code, do not start over or try to
correct your mistake. Complete the
f ive-digit sequence, then enter the
correct code. You have ten tries to
enter the correct code. If you are
unsuccessful in ten attempts, you
must then leave the system on for
one hour bef ore trying again.
Your vehicle’s audio system will
disable itself if it is disconnected
f rom electrical power f or any reason.
To make it work again, the user
must enter a specif ic f ive-digit code
in the Preset buttons. Because there
are hundreds of number
combinations possible f rom f ive
digits, making the system work
without knowing the exact code is
nearly impossible.
Youshouldhavereceivedacardthat
lists your audio system’s code
number and serial number. It is best
tostorethiscardinasafeplaceat
home. In addition, you should write
the audio system’s serial number in
this Owner’s Manual. If you should
happen to lose the card, you must
obtain the code number f rom your
Acura dealer. To do this, you will
need the system’s serial number. Thef t Protection
Audio System
Comf ort and Convenience Feat ures170
01/09/07 12:22:09 31S3V610_175
Page 175 of 372

Once the security system is set,
opening any door (without using the
key or the remote transmitter), or
the hood, will cause it to alarm. It
also alarms if the radio is removed
f rom the dashboard or the wiring is
cut.
The security system sets auto-
matically fifteen seconds after you
lock the doors, hood, and trunk. For
the system to activate, you must lock
the doors f rom the outside with the
key, lock tab, door lock switch, or
remote transmitter. The security
system light next to the driver’s door
lock starts blinking immediately to
show you the system is setting itself . The security system helps to protect
your vehicle and valuables f rom thef t.
The horn sounds and a combination
of headlights, parking lights, side
marker lights and taillights f lashes if
someone attempts to break into your
vehicleorremovetheradio.This
alarm continues f or two minutes,
then the system resets. To reset an
alarming system before the two
minutes have elapsed, unlock the
driver’s f ront door with the key or
the remote transmitter.
Do not attempt to alter this system
or add other devices to it. The security system will not set if
the hood, tailgate, or any door is not
f ully closed. If the system will not set,
check the Door and Tailgate Open
Monitor on the instrument panel
(see page ), to see if the doors
and tailgate are f ully closed. Since it
isnotpartofthemonitordisplay,
manually check the hood.64
Security System
Comf ort and Convenience Feat ures171
S SE
EC
CU UR RIITT Y
Y S
SYYSSTTE
EM
M L
LIIGGH HT
T
01/09/07 12:22:17 31S3V610_176
Page 205 of 372

However, if electronic accessories
are improperly installed, or exceed
your vehicle’s electrical system
capacity, they can interf ere with theoperation of your vehicle, or even
cause the airbags to deploy.
Make sure the accessory does not
obscure any lights, or interf ere
with proper vehicle operation or
perf ormance.
Be sure electronic accessories do
not overload electrical circuits
(see page ).
If possible, have your dealer inspect
the f inal installation. Bef ore installing any accessory:
When properly installed, cellular
phones, alarms, two-way radios, and
low-powered audio systems should
not interf ere with your vehicle’s
computer-controlled systems, such
as the SRS and anti-lock brake
system.
Modif ying your vehicle, or installing
some non-Acura accessories, can
make your vehicle unsaf e. Bef ore
you make any modif ications or add
anyaccessories,besuretoreadthe
f ollowing inf ormation.
Your dealer has genuine Acura
accessories that allow you to
personalize your vehicle. These
accessories have been designed and
approved f or your vehicle, and are
covered by warranty.
Non-Acura accessories are usually
designed f or universal applications.
Although aftermarket accessories
may f it on your vehicle, they may not
meet f actory specif ications, and
could adversely af f ect your vehicle’s
handling and stability. (See
‘‘Modif ications’’ on the page f or
additional information.)
Have the installer contact your
Acura dealer f or assistance bef ore
installing any electronic accessory.
202 336
A ccessories
A ccessories and Modif ications
Bef ore Driving201
Improper accessories or
modifications can affect your
vehicle’s handling, stability and
performance, and cause a
crash in which you can be hurt
or killed.
Follow all instructions in this
owner’s manual regarding
accessories and modifications.
01/09/07 12:27:10 31S3V610_206
Page 242 of 372

Your MDX can be towed behind a
motorhome at legal highway speeds
up to 65 mph (100 km/h). Do not
exceed 65 mph (100 km/h).
Otherwise, severe transmission
damage will occur. To avoid damage
to the 4WD system, it must be towed
with all f our wheels on the ground
(f lat towing).
When purchasing a tow bar, make
sure you select a reputable
manuf acturer and installer. Follow
the manufacturer’s attachment
instructions caref ully.If you tow more than 8 hours in one
day, you should repeat the above
procedure at least every 8 hours.
(when you stop f or f uel, etc.)
Do the f ollowing to prepare your
MDX f or ‘‘f lat towing.’’ Perf orm this
procedure every day immediately
bef ore you begin towing, and f ollow
this procedure exactly; otherwise,
severe automatic transmission
damage will occur. Check the transmission f luid level
(see page ). Maintaining the correct f luid level
is very important.
Start the engine.
Leave the ignition switch in
ACCESSORY (I) so the steering
wheel does not lock. Make sure
the radio and any items plugged
into the accessory power sockets
are turned of f so you do not run
down the battery. Release the parking brake. ShifttoD ,thentoN.Letthe
engine run f or three minutes, then
turn of f the engine. Press on the brake pedal. Shif t the
lever through all the positions (P,
R,N,D,D,D,2,1)
271
Do not overf ill.
5
543
Towing Your Vehicle Behind a Motorhome
Driving
Ext ended T owing
238
01/09/07 12:33:13 31S3V610_243
Page 285 of 372
If you need to connect the battery to
a charger, disconnect both cables to
prevent damage to the vehicle’s
electrical system.If your vehicle’s battery is
disconnected or goes dead, the audio
system will disable itself . The next
timeyouturnontheradioyouwill
see ‘‘ ’’ in the f requency
display. Use the Preset buttons to
enter the f ive-digit code (see page
).
170
Battery
Maint enance281
The battery gives off explosive
hydrogen gas during normal
operation.
A spark or flame can cause the
battery to explode with enough
force to kill or seriously hurt you.
Wear protective clothing and a
face shield, or have a skilled
mechanic do the battery
maintenance. Charging the battery with the cables
connected can seriously damage your
vehicle’s electronic controls. Detach
the battery cables bef ore connecting
the battery to a charger.
01/09/07 12:40:07 31S3V610_286
Page 310 of 372

Frequent washing helps preserve
your vehicle’s beauty. Dirt and grit
can scratch the paint, while tree sap
and bird droppings can permanently
ruin the f inish.
Wash your vehicle in a shady area,
not in direct sunlight. If the vehicle is
parked in the sun, move it into the
shade and let the exterior cool down
bef ore you start.When you have washed and rinsed
the whole exterior, dry it with a
chamois or sof t towel. Letting it
air-dry will cause dulling and water
spots.
Rinse the vehicle thoroughly with
cool water to remove loose dirt.
Only use the solvents and cleaners
recommendedinthisOwner’s
Manual. Fill a bucket with cool water. Mix
in a mild detergent, such as
dishwashing liquid or a product
made especially f or car washing.
Wash the vehicle using the water
and detergent solution and a sof t-
bristle brush, sponge, or sof t cloth.
Start at the top and work your way
down. Rinse f requently.
Check the body f or road tar, tree
sap, etc. Remove these stains with
tar remover or turpentine. Rinse it
of f immediately so it does not
harm the f inish. Remember to re-
wax these areas, even if the rest of
the vehicle does not need waxing.As you dry the vehicle, inspect it f or
chips and scratches that could allow
corrosion to start. Repair them with
touch-up paint (see page ).
307
Exterior Care
Appearance Care
Washing
306
Chemical solvents and strong cleaners
can damage the paint, metal, and
plastic on your vehicle. The radio antenna on your vehicle does
not need to be removed when you use a
‘‘drive-through’’ car wash. However, if
you remove the antenna, make sure to
reinstall it and tighten it securely using
an appropriate tool.
01/09/07 12:44:05 31S3V610_311
Page 332 of 372
This indicator should come on when
the ignition switch is ON (II), and go
out af ter the engine starts. If it
comes on brightly when the engine
is running, it indicates that the
charging system has stopped
charging the battery.By eliminating as much of the
electrical load as possible, you can
drive several miles (kilometers)
before the battery is too discharged
to keep the engine running. Drive to
a service station or garage where
you can get technical assistance.
Immediately turn of f all electrical
accessories:radio,heater,A/C,
climate control, rear def ogger, cruise
control, etc. Try not to use other
electrically-operated controls such as
the power windows. Keep the engine
running and take extra care not to
stall it. Starting the engine will
discharge the battery rapidly.
T aking Care of t he Unexpect ed
Charging System Indicator
328
C CH
H A
AR
RGGI INNG G S
SYYSSTTE
EM
M I
INND DI
ICCA A T
TO
OR R
01/09/07 12:47:34 31S3V610_333
Page 339 of 372

If the replacement fuse of the
same rating blows in a short time,
there is probably a serious
electrical problem in your vehicle.
Leave the blown fuse in that
circuit and have your vehicle
checked by a qualif ied mechanic.If the radio f use is removed, the
audio system will disable itself . The
nexttimeyouturnontheradioyou
will see ‘‘ ’’ in the f requency
display. Use the Preset buttons to
enter the f ive-digit code (see page
).
If you cannot drive the vehicle
without f ixing the problem, and you
do not have a spare fuse, take a fuse
of the same rating or a lower rating
f rom one of the other circuits. Make
sureyoucandowithoutthatcircuit
temporarily (such as the accessory
power socket or radio).
If you replace the blown f use with a
spare f use that has a lower rating, it
might blow out again. This does not
indicate anything wrong. Replace the
f use with one of the correct rating as
soon as you can.
6.
170
CONT INUED
Fuses
T aking Care of t he Unexpect ed335
Replacing a f use with one that has a
higher rating greatly increases the
chances of damaging the electrical
system. If you do not have a replace-
ment f use with the proper rating f or the
circuit, install one with a lower rating.
01/09/07 12:48:32 31S3V610_340